1. The parallel sides of a trapezium measure 12 cm and 20 cm. Calculate its area if the distance between the parallel lines is 15 cm.
2. Calculate the height of a cuboid which has a base area of 180 cm2 and volume is 900 cm3.
3. Solve the following linear equations:
(i) x – 11 =7
(ii) z + 8 = 9
(iii) 11x = 121
THOSE WHO WILL SOLVE THE THREE QUESTIONS CORRECTLY, I WILL MARK AS BRAINLIEST ANSWER.
PLEASE SOLVE. AS IT IS URGENT
2. Calculate the height of a cuboid which has a base area of 180 cm2 and volume is 900 cm3.
3. Solve the following linear equations:
(i) x – 11 =7
(ii) z + 8 = 9
(iii) 11x = 121
THOSE WHO WILL SOLVE THE THREE QUESTIONS CORRECTLY, I WILL MARK AS BRAINLIEST ANSWER.
PLEASE SOLVE. AS IT IS URGENT
Answers & Comments
Answer:
Answer:
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Area
(Trapezium)
=240cm
2
Step-by-step explanation:
Given that, the parallel sides of a trapezium measure 12 cm and 20 cm. and distance between the parallel lines is 15 cm.
We know,
Area of trapezium whose parallel sides are of length a units and b units respectively and distance between them is h units is
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Area
(Trapezium)
=
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1
(a+b)h
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a=12cm
b=20cm
h=15cm
So, on substituting the values in above formula, we get
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(
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×
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Area
(Trapezium)
=
2
1
(12+20)×15
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×
32
×
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Area
(Trapezium)
=
2
1
×32×15
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=
16
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Area
(Trapezium)
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⟹
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⟹Area
(Trapezium)
=240cm
2
Additional Information
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†
Formulas Of Areas:−
⋆Square=(side)
2
⋆Rectangle=Length×Breadth
⋆Triangle=
2
1
×Base×Height
⋆Scalene△=
s(s−a)(s−b)(s−c)
⋆Rhombus= 21
×d 1×d 2
⋆Rhombus= 21
d 4a 2 −d 2
⋆Parallelogram=Base×Height
⋆Trapezium= 21
(a+b)×Height
⋆EquilateralTriangle= 43
(side) 2
Step-by-step explanation:
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