Question

If two angles of a triangle are 30 and 105, then the third angle will be

Answer 1

Answer:

third angle will b 45

Step-by-step explanation:

solution ------>

Given

let asume Δ ABC

now

we have;

$< a = 30 \\ \\ < b = 105 \\ \\ < c =$

As we all know sum of all angle of triangle =180

so as per condition we write

<a + < b + < c = 180

$30 + 105 + < c = 180 \\ \\ 135 + < c \: = 180 \\ \\ < c = 180 - 135 \\ \\ < c = 45$

so third angle will b 45

Answer 2

Dear Student,

◆ Answer -

45°

● Explaination -

Let a, b and c be measures of three angles.

# Given -

a = 30°

b = 105°

c = ?

# Solution -

We know that sum of all angles of triangle is 180°.

a + b + c = 180°

30° + 105° + c = 180°

135° + c = 180°

c = 180° - 135°

c = 45°

Hence, measure of third angle is 45°.

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Good luck dear.