If 2 of the angles of a a triangle are 30 and 70 degrees, then the third angles measures is

Question

asked Jul 16, 2024 233k views

1 Answer

Pieter Kuijpers · Answer 1 · 2024-07-21T16:07:05+0000

Answer:

${\boxed{\sf{Measure \ of \ third \ angle = 80 \degree}}}$

Explanation:

Let the third angle be 'x'

We know that,

Sum of all the angles of a triangle = 180°

$\sf 30 + 70 + x = 180$

$\sf 100 + x = 180$

Subtracting 100 from both sides,

$\sf x = 180 - 100$

$\bf x = 80$

$\therefore$ Third angle = 80°