Answer:
3cm and 7cm
Step-by-step explanation:
The length is 7cm.
The width is 3cm.
Area = Length × Width = 7cm × 3cm = 21cm²
Answer:
a
Step-by-step explanation:
if f(x)=y then when x is 1 2(3)^X= 6
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
And then simplify that to 7 = x.
So the length of a rectangle would be 28 cm, and the width would be 7.
So to find the area, just multiply length by width.
28*7 = 196 square cm
So the rectangle's area is 196 square cm.
I hope I helped!
Answer:
70*
Step-by-step explanation:
we have a right triangle - r is 90*
based on geometric rules: angle RPQ = 20 40 : 2
90 + 20 = 110
110 + x = 180
triangle have 180*
it means that 180 - 110 =
70 *
last answer D
