Question

A)if x° and 60° makes a right angle,find the size of x°. [hint : x° + 60° =90°].

b)if y° and 100° make a straight
angle,find the size y°.
​

Answer 1

Use the hints to your advantage.

a)

x° + 60° = 90°

x = 90 - 60

x = 30°

b)

y° + 100° = 180° (straight line)

y = 180 - 100

y = 80°

Answer 2

a. X=30°

b. y=80°

solution,

a.

`x + 60 = 90(sum \: of \: right \: angle) \\ or \: x = 90 - 60 \\ x = 30`

b.

`y + 100 = 180(sum \: of \: angle \: in \: straight \: line) \\ or \: y = 180 - 100 \\ y = 80`

hope this helps..

Good luck on your assignment..