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Title: Quadrilaterals (Rhombus, Square)

Grade: 6-a Lesson: S2-L5

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	In a square, the length of one diagonal is 15.6 in. Find the area of the square.
2	Step	Given that the length of one diagonal is 15.6 in.
3	Formula	The area of a square when you know the length of one of its diagonals, you can use the following formula:	A = \$(Diagonal^2) / 2\$
4	Step	Now plug the values into the formula:	⇒ A = \$(15.6^2)/2\$ ⇒ A = \$243.36/2\$ ⇒ A = 121.68
5	Step	So, the area of the square is 121.68 sq.in.
6	SumUp	Can you summarize what you’ve understood in the above steps?
7	Choice.A	This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation	121.86 sq.in
8	Choice.B	This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation	112.68 sq.in
9	Choice.C	This is correct by using the formula of square	121.68 sq.in
10	Choice.D	This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation	112.86 sq.in
11	Answer	Option	C
12	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

In a square, the length of one diagonal is 15.6 in. Find the area of the square.

Step

Given that the length of one diagonal is 15.6 in.

Formula

The area of a square when you know the length of one of its diagonals, you can use the following formula:

A = \$(Diagonal^2) / 2\$

Step

Now plug the values into the formula:

⇒ A = \$(15.6^2)/2\$

⇒ A = \$243.36/2\$

⇒ A = 121.68

Step

So, the area of the square is 121.68 sq.in.

SumUp

Can you summarize what you’ve understood in the above steps?

Choice.A

This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation

121.86 sq.in

Choice.B

This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation

112.68 sq.in

Choice.C

This is correct by using the formula of square

121.68 sq.in

Choice.D

This is not correct because it seems to be a slightly different value, likely a result of a rounding miscalculation

112.86 sq.in

Answer

Option

SumUp

Can you summarize what you’ve understood in the above steps?