Answer: perimeter = 96mm, Area = 564mm².
Step-by-step explanation:
From the diagram, it is a trapezium, it has a rectangle joined together by a right angled triangle. Now to find the perimeter, we add all the dimensions together. To get the other side of the rectangle, which is also the perpendicular height of the figure, we take the Pythagoras. Let the perpendicular height = x
Therefore,
25² = ײ + 7²
625 = x² + 49
x² = 625 - 49
x² = 576
x. = √576
= 24.
Now the perimeter
= 20 + 25 + 7 + 20 + 24
= 96mm.
Area of the figure will be
= 1/2( a + b )h
Where a = 20, b = 20 + 7 = 27 and h = 24, now substitute for the values
( 20 + 27) x 24
---------------------
2
= 47 x 24/2
= 47 x 12
= 564mm²
Answer:
x = 3.7
Step-by-step explanation:
Apply trigonometric function to find x
Reference angle = 24°
Opposite = x
Hypotenuse = 9
This, apply SOH:
Sin 24 = Opp/Hyp
Sin 24 = x/9
9 × Sin 24 = x
3.66062979 = x
x = 3.7 (nearest tenth)
Answer:
Sharifa can pay for the DVD player first.
Step-by-step explanation:
<u>Max:</u>
99 - 31 = $68 remaining
68 / 8.5 = <em>8 weeks</em>
<u>Sharifa:</u>
99 - 25.5 = $73.50 remaining
73.5 / 10.5 = <em>7 weeks</em>
Answer:
Either C or B I’m not quite sure which one. I’m sorry
Step-by-step explanation:
Answer: The answer is: C.
~ i hope this is correct, if not im sorry, have a gr8 day my friend!~
Step-by-step explanation:
