5. Diagram 1 shows an isosceles triangle with a base of 4y cm and a height of (y + 5) cm. Diagram 2 shows a square with sides of y cm.
The area of the triangle is more than the area of the square by 39 cm². Calculate the difference
in perimeter between both shapes.

Height of the triangle = y + 5 cm
Length of base = 4y cm
Height of the square = y cm

equal to

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true