ABCD is a trapezium such that AB parallel to CD angle A : angle D = 7:2 angle B: angle C = 4:5 find all angles
Answers
Answer:
Step-by-step explanation:
Keep in mind that a trapezium is a quadrilateral, and therefore all of its angles will total 360 degrees.
Now, add up the numbers that you have: 7 + 2 + 4 + 5. That equals 18.
We're going to have to do SOMETHING to that 18 to turn it into a total of 360.
So divide 360 ÷ 18, and you get 20.
So that means you needed to multiply 18 x 20 to get 360.
Which means that you need to take your 4 original numbers above, and multiply each of THEM by 20 before adding them together:
7 x 20 = 140
2 x 20 = 40
4 x 20 = 80
5 x 20 = 100
Add those four products together and they give you 360. So they are your 4 angles! (A, D, B, and C, in that order.)
Hope this helps!
Answer:
hello plz follow me plz mark as brainlist
Step-by-step explanation:
360 is 4 th angle plz plz plz plz plz mark as brainlist