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tangare [24]
3 years ago
14

What is the area of this figure? Urgent!! PLS HELP

Mathematics
1 answer:
tatiyna3 years ago
6 0
Solution:
Area of parallelogram
= b × h
= 20 × 16
= 320 in^2
Area of triangle
= 1/2 × 20 × 8
= 80 in^2

Area of figure
= 320 + 80
= 400 in^2
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Please help on one math question
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The diagram shows five shapes on a centimetre grid.
il63 [147K]

Answer:

Parallelogram

Step-by-step explanation:

It is a parallelogram, because one pair of opposite sides are parallel to each other.

Hope it helps :)

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3 years ago
Draw a quadrilateral ABCD with AB = 8.5cm, BC =4.5cm, CD =5cm , DA = 6cm , BD =7.5cm. Draw an equal area Triangle​
irina1246 [14]

Answer:

Check below please

Step-by-step explanation:

A quadrilateral is a polygon with four sides.

Then let's plot it, check it below.

1) Since 5 line segments were given for a quadrilateral, one of them is an interior one. In this quadrilateral, a rhombus. We have a diagonal, id est a line segment between non-consecutive points.

2) Let's calculate the area of this rhombus. Since this polygon is made up of two triangles let's find it using Heron's Formula, not very popular. But equally valid, also we don't have the height nor angles.

All we need is the semi-perimeter, (half of the Perimeter (2P) and plug it in the formula:

\bigtriangleup ABD semi-perimeter:\frac{6+8.5+7.5}{2} \therefore s=11\\Area \:\bigtriangleup ABD=\sqrt{11(11-6)(11-8.5)(11-7.5)}=\frac{5\sqrt{77}}{2} \approx21.94 cm\\\\\bigtriangleup \:BCD\: semi-perimeter:\frac{4.5+5+7.5}{2}  \therefore s=8.5\\\\Area \bigtriangleup BCD=\sqrt{8.5(8.5-4.5)(8.5-5)(8.5-7.5)}=\sqrt{119}\approx 10.90

Area\: of\: Rhombus\: ABCD=21.94+10.90=32.84 cm^2

3) Well, now we need to trace a triangle whose area is 32.84 cm^2. From the classical formula for Area of Triangles we can write:

\frac{b*h}{2}=32.84 \therefore b*h=65.68

Let's find out two values one for the base and another for height. Since 65.58 can be divided both by two and three, it is divisible by 6.

So

65.58  : 6 =10.93\\b=6\\h=10.93

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3 years ago
12 + 3x - 7 = 7x = 7 - 4x<br><br><br> a. always<br> b. sometimes<br> c. never
Rasek [7]
I think the answer is sometimes or never.

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4 years ago
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