<span>3x + 2x = 90 {the two angles add up to 90°}
5x = 90 {combined like terms}
x = 18 {divided both sides by 5}
angle 1 = 3x
= 3(18) {substituted 18, in for x, into 3x}
</span><span>= 54° </span><span>angles add up to 90°
angle 1 = 3x
angle 2 = 2x
</span>
Answer:
-10 < x < -8
Step-by-step explanation:
Envision a number line. There is one whole number, -9, and and an infinite amount of fractions (rational numbers) and irrational numbers between -10 and -8.
X could be any of those values.
Answer:
10
Step-by-step explanation:
3:4:<u>5</u>:7 added up is 19 so doubling it is-
6:8:<u>10</u>:14 =38
Hope this helps!
Answer:
Step-by-step explanation:
Given: In a parallelogram ABCD, diagonals intersect at O and ar(ABCD) is 
.
We need to find the area of triangle AOB.
We know that each diagonal divide the parallelogram in two equal parts and diagonals bisect each other.
It means both diagonals divide the parallelogram in 4 equal parts.
Hence, the values of ar(AOB) is .
