Question

12. The angle of a triangle are
equal and the third angle is 70°
.find the equal angles

a 55°

b 45°

c 65°

d 70°
​

Answer 1

Answer:

55 option a

Step-by-step explanation:

x+x+70=180

2x=180-70

2x= 110

x= 110/2

x=55

hope it helps...

Answer 2

$\bigstar$ Question:

The angles of a Triangle are equal and the Third angle is 70°. Find the equal angles.

• (a) 55°
• (b) 45°
• (c) 65°
• (d) 70°

$\bigstar$ Given:

The two angles are equal and the measure of the Third unequal angle is 70°.

$\bigstar$To find:

• The measure of the equal angles.

$\bigstar$ Solution:

Let the each equal angles be x.

Now, the third angle is 70°.

A/q x + x + 70° = 180°

(Angle Sum Property Of A Triangle)

$\implies$ 2x + 70° = 180°

$\implies$ 2x = 110°

$\implies$ x = 110°/2

$\implies$ x = 55°

$\therefore$ the measure of equal angles is 55°.

$\bigstar$Answer:

Hence, the correct option is (a) 55°.