Question

I need help cuz Im not good at maths

Answer 1

Answers:

a. 26.2 cm

b. 13.8 cm

Steps:

a. Solution,

Length(l)=9 cm

Breadth(b)=4.1 cm

Perimeter of rectangle=2(l+b)

=2(9+4.1)

=2*13.1

=26.2 cm

b. Perimeter of triangle=a+b+c

= 3.6+3+7.2

=13.8 cm

Hope it helps

Good luck on your assignment

Answer 2

Answer:

$a)26.2cm \\ b)13.8cm$

Step-by-step explanation:

Picture A

there is a rectangle in picture a.

So, let's find the perimeter of this shape

$perimeter \\ = l+ b+ l + b \\ = 2l + 2b \\ = 2 \times 9 + 2 \times 4.1 \\ = 18 + 8.2 \\ = 26.2cm$

Picture B

there is a triangle in picture b

So, let's find the perimeter of the triangle.

To find the perimeter of a triangle you have add the values of three sides together.

$perimeter \\ = 3.6 + 7.2 + 3 \\ = 13.8cm$

hope this helps

brainliest appreciated

good luck! have a nice day!