Question

3. In the triangle two angles are 70° and 30" then find the third angle
al triangle?​

Answer 1

Answer:

If you add all three interior angle measures together in a triangle it will always equal 180°.. To find a third angle you will subtract the sum of the two given angles from 180°.

Step-by-step explanation:

Sum of all angles=180

70+30+ ×=180

×=180-100

×=80

Answer 2

Answer:

the third angle is 80°

Step-by-step explanation:

let the third angle be x°

ΔABC in which angle A = 70°

angle B = 30°

By Angle Sum Property of a triangle

angle A + angle B + angle C = 180

70 + 30 + x = 180

100 + x = 180

x = 180 -100

x = 80

hence , the third angle = 80°

HOPE ITS HELPFUL