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Unit Congruent Triangles Homework 3: Isosceles & Equilateral Triangles

Date:

Bell:

This

2-page document

Directions: Find each missing measure.

RMAA

McM = mZN

RZU

Fr =

MZP mzQ MZR

Directions: Find the value of each variable.

Jor-i

M

AABC is an isosceles triangle and ADBE measure.

equilateral triangle, find each missing

Dla

ni46

MZ2 mc3 mz4 mZS

mz7 mz8 mz9

Io orayrontaii tnezs Kizedai . 2014

Name: Date:

Unit = Congruent Triangles Homework 3: Isosceles Equilateral Triangles

Bell:

This

2-Page document

Directions: Find each missing measure.

MF

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03:18

1. Triangles ABC and DEF are congruent. If mâˆ ABC= 67Â° and mâˆ EDF = 79Â°, what is the measure of âˆ EFD?2. Given: âˆ† UBD â‰… âˆ† DIR, UB = 28, BD = 36, UD = 43 and DR = 2x + 3.3. What is the value of x?3. Given: âˆ† SIT â‰… âˆ† ABC, mâˆ S = 40Â°, mâˆ I = 55Â°, AB = 3x + 2 cm and SI = 11 cm. Find the value of x and the measure of âˆ C.4. If âˆ† ABC â‰… âˆ† PQR, AB = 8x, BC = 5x â€“ 1, PR = 2x + 3, and PQ = 4x + 4. Find PR.

03:24

HELP ASAP! 1) The diagram shows an equilateral triangle ABC sharing a side with square ABCDE. The square has side lengths of 4. What is the length of line BE? Justify your answer. (in image)2) *In image*1/31/17 IenueWN [The square points) tasks. ACDE (worth L square _ answer. the side with Justify your complete Suueys BE? AABC Task – ! 48u2[ = space equilateral _ the Performance the 1 Use 1 below 5-3: DIRECTIONS: S413ua[ = Unit _ The diagram side has8 EUCSH(

07:16

Angle Bisectors Circumcenter, and Incenter Part I: Triangle Midsegments 1. If DE and F are midpoints of the sides of ABC, find the perimeter of ABC.Find MN:(Tx-3) * (5r – 9)Part II: Perpendicular Bisectors & Angle Bisectors 4. If EF is the perpendicular bisector of CD, find x.4r + 196r – 714r – 98r + 3Find mLABD.Find QR.9x – 223x + 2210x – 41(6x – 7)

01:07

IE BrEdr @ Go 0 GrcN Idic Elldic N Idickhanacademy.org/profile/ykaid_33045762032068596737671/assignments/teacher/ykaid_101212427987421926217847/class5/56COVID-19 school closure resources: Daily schedules for students ages 2-18. Want to help us help others? Consider making a donation to help fhcnc, a non-profit organization.Find angles in congruent triangles50n202 99Lesson D24CoursesWhat is the volume of the figure shown below?Report a problemStuck? Watch a video or use a hint2 of 4(Cne)

Transcript

We have some problems with isoceles triangles isoceles triangles have at least 2 congruent sides. So in our first triangle this is s t? U, we can see that we have a pair of congruent sides, so that means we have a pair of congruent angles. So angle? U measure of angle? U is 54 degrees now to get t we’re just going to subtract 5454 from 180 point and that is going to give us 72 degrees for the measure of angle t in the second problem. I have the vertex angle, so i know my base angles have to be congruent. If the sides are congruent, then the angles opposite. Those sides are congruent, so you want 180 minus that vertex angle, and that is going to give you 152. That needs to be divided evenly among the vertex, the base angles, part of me, so the measure of angle m, which is this angle- it’s going to be the same as the measure of angle and they are both going to be 76 degrees. Number 3. We have a little work with the sides so again if the angles are congruent, that means the sides opposite them are congruent. So i have e f g. That means e f has to be 18. The measure of angle f, well f, is the vertex angle. I have 223 degree angles, subtract, 23 and 23, and that will give you a measure of 1344 f in number 4. You have an equilateral triangle. That means all…

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