Determine the angle, Mathematics

Assignment Help:

In parallelogram ABCD, m∠A = 3x + 10 and m∠D = 2x + 30, Determine the m∠A.

a. 70°

b. 40°

c. 86°

d. 94°

d. Adjacent angles in a parallelogram are supplementary. ∠A and ∠D are adjacent angles. Thus, ∠A + ∠D = 180; 3x + 10 + 2x + 30 = 180. Simplifying, 5x + 40 = 180. Subtract 40 from end sides, 5x = 140. Divide both sides by 5; x = 28. ∠A = 3x + 10 or 3(28) + 10 which equals 94. If you select a, you considerd ∠A = ∠D. If you select b, you considered ∠A + ∠D = 90. If you select c, you solved for ∠D instead of ∠A.


Related Discussions:- Determine the angle

Triganometry, Ask question #Minimum 100 words what is the hypotunus of a r...

Ask question #Minimum 100 words what is the hypotunus of a right bangled triangle a=5@ b=25 find c accwhepted#

How many can speak both english and russian, In a group of 1000 people, the...

In a group of 1000 people, there are 750 people will speak English and 400 people will speak Russian. How many may speak English only? How many will speak Russian? How many can spe

System of differential equations for the population, Write down the system ...

Write down the system of differential equations for the population of both predators and prey by using the assumptions above. Solution We will start off through letting that

What is the difference in the two low temperatures, The low temperature in ...

The low temperature in Anchorage, Alaska present was -4°F. The low temperature in Los Angeles, California was 63°F. What is the difference in the two low temperatures? Visualiz

Hello, I am here to tell you, Alex has a cold.

I am here to tell you, Alex has a cold.

What is her commission if she sells a $359, A real estate agent makes a 1.5...

A real estate agent makes a 1.5% commission on her sales. What is her commission if she sells a $359,000 house? Multiply $359,000 by the decimal equivalent of 1.5% (0.015) to ?

Green''s funtion., show that the green''s function for x"=0,x(1)=0,x''(0)+x...

show that the green''s function for x"=0,x(1)=0,x''(0)+x''(1)=0 is G(t,s)=1-s

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd