lexie41 lexie41

27-04-2017
Mathematics

contestada

how can I solve this?

how can I solve this class=

Respuesta :

yguo0818 yguo0818

27-04-2017

∠a+108°=180°
so∠a=72°
and ∠b+∠a=90°
so ∠b= 18°

Answer Link

qwertyuiop98 qwertyuiop98

27-04-2017

a straight line is measured to be 180 degrees so, 180-108 = 72 degrees for a. then a+b = 90 degrees. b=90-72=18 degrees. :)

Answer Link

Otras preguntas

Tap 1 fills the pool in 12 hours, while tap 2 fills the same pool in 15 hours. How long does it take to fill this pool if both taps are used?

Describe a real world situation that can be modeled by the equation y = 1/20x. be sure to describe what each variable represents.

Suppose that *n = {n - 2, n + 2, 2n, n/2}. For example, *6 = {3,4,8,12}. For how many distinct integers n does *n have exactly three distinct elements?

Which is a true statement? Themes are implied by the writer and are never obvious. Themes may be specific to one culture or apply to multiple cultures. Themes a

Which accurately describes a letter written during the time a historical event occurred?

Which pair of molecules both contain carbon atoms?

2. What two features must a sample have if it is to accurately represent a population?

Another word for acadians

The barrel of a gun is also known as what? Rifle Caliber Bore Gauge

What effect does observing a substance's physical properties have on the substance?