The area of triangle of base 8 cm is 20 sq.cm then, length of the altitude of the triangle is ………..
A) 5/2 cm
B) 5 cm
C) 80 cm
D) 160 cm
1 Answers
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The area of a parallelogram is 392 `m^(2)` . If its altitude is twice the corresponding base , determine is `392 m^(2)`. If its altitude is twice the
Correct Answer - Base = 14 m , altitude = 28 m
2 Answers 1 views
If A(1, 4, B(2, 3) and C(-1,-2) are the vertices of a `triangle ABC`, find the equation of (i) the median through A (ii) the altitude through A (iii)
Correct Answer - (i)13x-y-9=0, (ii)3x-y+1=0 (iii)3x-y-4=0
2 Answers 3 views
Calculate the area of the triangle whose sides are 18 cm, 24 cm and 30 cm in length. Also, find the length of the altitude corresponding to the smalle
Correct Answer - 216 `cm^(2)`, 24 cm
2 Answers 1 views
The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. Find the area of the triangle. Hint Ratio of sides
Correct Answer - `32 sqrt(3) cm^(2)`
2 Answers 1 views
Base of a coloured flag which is in the shape of triangle is 2 + √2 units and height is 2 – √2 units. Then the area of flag in square units.
Correct option is (C) 1 Area of flag \(=\frac12\times\) Base \(\times\) Height \(=\frac12\times(2+\sqrt2)\times(2-\sqrt2)\) \(=\frac{4-2}2\) = 1 square units
2 Answers 3 views
If a triangle and a parallelogram are on the same base and between the same parallels then, area of the triangle is ……………. the area of parallelogram.
Correct option is C) half
2 Answers 1 views
Area of triangle is 120 cm^2 and its base is 15 cm then its height is ………………. cm.
Correct option is A) 16
2 Answers 1 views
In a parallelogram the base is double the height and the area is 512 cm^2 then its base is …………………… cm
Correct option is D) 32
2 Answers 1 views
The length of hypotenuse of a right-angled triangle exceeds the length of the base by 2cm and exceeds twice
Let the length of altitude be x cm. Length of hypotenuse = 2x+ 1cm. Length of base = 2x- 1 Now, x² + (2x- 1) ² = (2x+ 1)² x² = (2x+1)²...
2 Answers 1 views
Two sides of a triangle are given by `hati+hatj+hatk` and `-hati+2htj+3hatk`, then area of triangle is
Correct Answer - B Area of triangle `=(1)/(2)|vecAxxvecB|`
2 Answers 1 views