Question

Answer the following questions

Answer 1

Answer:

80

Step-by-step explanation:

let the third angle be x,

now,

x+60+40=180(Angles of a triangle)

x+100=180

x=180-100

x=80

Therefore, the third side is 80.

Answer 2

✪ Question ✪

In the following figure, the measure of ∠A is ?

✪ Given ✪

☞∠B = 60°

☞∠C = 40°

✪ To find ✪

The measure of ∠A.

✪ Rule ✪

The sum of all angles of a triangle is 180°.

✪ Solution ✪

∠A + ∠B + ∠C = 180

↝∠A + 60 + 40 = 180

↝∠A + 100 = 180

↝∠A = 180 - 100

↝∠A = 80

✪ Hence ✪

∠A = 80

✪ Therefore ✪

The measure of ∠A is 80°.

๑ Hope this helps you. ๑