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3 years ago

Find the area of this rectangle. 8 cm 4 cm ? ] = square centimeters

Mathematics

2 answers:

babymother [125]3 years ago

5 0

Answer:

32 cm²

Step-by-step explanation:

Area of rectangle

= length × breadth

= 8 cm × 4 cm

= 32 cm²

kirill [66]3 years ago

3 0

Answer:

32 square centimeters

Step-by-step explanation:

Area of a rectangle = l • w where l = length and w = width

Area of a rectangle = 8 • 4

Area of a rectangle = 32^2 cm

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riadik2000 [5.3K]

Answer:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

Step-by-step explanation:

Incomplete question:

$\angle CBD = 53^\circ$

$\angle CAB = 35^\circ$

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See attachment for complete question

Required

Determine the equation to find x

First, is to complete the angles of the triangle (ABC and ACB)

$\angle ABC + \angle CBD = 180$ --- angle on a straight line

$\angle ABC + 53= 180$

Collect like terms

$\angle ABC =- 53+ 180$

$\angle ABC =127^\circ$

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Collect like terms

$\angle ACB =- 127 - 35 + 180$

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Apply sine rule

$\frac{\sin A}{a} = \frac{\sin B}{b}$

In this case:

$\frac{\sin ACB}{AB} = \frac{\sin CAB}{x}$

This gives:

$\frac{(\sin 18^\circ)}{75} = \frac{(\sin 35^\circ)}{x}$

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