Question

m∠R = 120 and m∠S = 110. Find m∠T.

Answer 1

Here's your solution:)

Answer 2

Given:

m∠R = 120

m∠S = 110

To Find:

m∠T

Solution:

UR = RS

UT = TS

Then, m∠S is congruent with m∠U. That is, m∠U = 110°

Now, using angle sum property of a quadrilateral.

⇒ ∠R + ∠S + ∠T + ∠U = 360°

⇒ T = 360 - R - S - U

⇒ 360 - 110 - 120 - 110 = 20°

Therefore, the value of m∠T is 20°.