Answer:
6
Step-by-step explanation:
4 = 12/3
12/3 divided by 2/3 = 6
2/3
2/3
2/3
2/3
2/3
2/3
+
______
12/3
The answer is 6
Given that Macy wants to construct an isosceles triangle, with the unique angle being 40° it implies that for the triangle to be isosceles, the base angles should be the same. The size of the base angles will be:
(180-40)/2=70
given that that the base is 6 cm, Macy can only form 1 triangle with these dimensions.
The length of the other sides will be found using sine rule
a/sin A=b/sin B
a=6 cm
A=40°
b=?
B=70
hence:
6/sin 40=b/sin 70
b=(6sin 70)/sin40
b=8.77 cm
L = 2w + 6
p = 144
144 = 2w + 2(2w + 6)
144 = 2w + 4w + 12
132 = 6w
w = 22
l = 2(22) + 6
l = 50
The length is 50 feet and the width is 22 feet.
The answer is A. I calculated the answer by using the formula for triangles.
-3a=-3-2b
a=1+2/3b
Solution
a=1+2/3b
