Question

If you’re good at geometry solve these 2 please

Answer 1

13.

Let us say

first angle be = 4x -10

second angle = x

now add them to 90 as complementary angles add up to 90

4x - 10 + x = 90

5x - 10 = 90

5x = 90+10

5x = 100

x = 100/5

x = 20

the first angle = 4x -10

= 4(20) -10

= 80 -10

= 70

the second angle = x

= 20

the angles are 70 and 20