leanne52 leanne52

16-02-2021
Mathematics

contestada

Find the unknown angle

Find the unknown angle class=

Respuesta :

aleeshasaji aleeshasaji

16-02-2021

Answer:

A = 45°

Step-by-step explanation:

All angles in a triangle add up to 180°.

We know that one angle in the triangle is 90° (this is known because of the small square).

Hence:

A + A + 90° = 180°

Simplify

2A + 90° = 180°

Rearrange

2A = 180 - 90

2A = 90

Divide both sides by 2, so that A is by itself

A = 45°

Answer Link

Otras preguntas

Homeostasis is the body’s ability to maintain a stable internal environment when faced with a changing external environment. Group of answer choices True False.

Which line is the correct answer

Factorise fully 7y+84

Help with #1 so I can get the gist of it please?

If Θ is in quadrant III and tanΘ >0, then x is negative. True or false.

factorise 18x-6 will give brainly to whoever answers first

What inference can be made about why Smaug chose to go to lake-town? Question 1 options: He wanted to steal what treasure they had left. He never liked the men

5/14 x 4/3 in fraction form

Which country was most responsible for the change in U.S. foreign policy at the end of the 18th century

According to emperors and scholars, knowledge of the ideas of Confucius would produce what type of government official?