If you are solving by substituting A=50 and B=75
Answer:
a or d) Other angle that could be in that isosceles triangle is 75°or 30°.
Step-by-step explanation:
Let us assume the given isosceles triangle is ABC.
Now, In an ISOSCELES TRIANGLE, two sides are equal.
⇒ AB = AC
CASE - 1 : Here: ∠A = 30°
Now,a s we know: ANGLES OPPOSITE TO EQUAL SIDES ARE EQUAL.
Now, as AB = AC
⇒ ∠B = ∠C = x
Now, by ANGLE SUM PROPERTY:
∠A + ∠B + ∠C = 180°
or, 30° + x + x = 180
or, 2 x = 150
or, x = 150/2 = 75
⇒ ∠B = ∠C = 75°
Case 2: ∠B = 30°
So, ∠C = 30°
Hence, other angles that could be in that isosceles triangle is 75° or 30°.
Answer:
The distance between points (-5, −3) and (2, −7) is (7, -4)
Step-by-step explanation:
(-5, y) to (2, y) is (7, y)
(x, -3) to (x, -7) is (x, -4)
<span>Let x= measure of sides that have common length
then from "the third side measures 5m less than twice the common length."
2x-5= third side
.
Because they gave us the perimeter we have:
11 = x+x+2x-5</span><span>11 = 4x-5
16 = 4x
4 m = x
.
third side:
2x- 5 =2(4)-5 = 8-5= 3m</span>
Length answers:
4m, 4m, and 3m
Answer (let x be the number):
5x - 40 = x + 8
I hope this helps!