Advertisements
Advertisements
प्रश्न
The area of the trapezium, if the parallel sides are measuring 8 cm and 10 cm and the height 5 cm is
विकल्प
45 sq.cm
40 sq.cm
18 sq.cm
50 sq.cm
Advertisements
उत्तर
45 sq.cm
Explanation;
Hint:
= `1/2` × h × (a + b)
= `1/2` × 5 × (10 + 8)
= 45
APPEARS IN
संबंधित प्रश्न
Top surface of a raised platform is in the shape of a regular octagon as shown in the figure. Find the area of the octagonal surface.

Find the area of trapezium with base 15 cm and height 8 cm, if the side parallel to the given base is 9 cm long.
Find the area of a trapezium whose parallel sides are of length 16 dm and 22 dm and whose height is 12 dm.
Find the altitude of a trapezium whose area is 65 cm2 and whose bases are 13 cm and 26 cm.
The cross-section of a canal is a trapezium in shape. If the canal is 10 m wide at the top 6 m wide at the bottom and the area of cross-section is 72 m2 determine its depth.
Find the area of the field shown in Fig. 20.39 by dividing it into a square, a rectangle and a trapezium.
The following figure shows the cross-section ABCD of a swimming pool which is a trapezium in shape.

If the width DC, of the swimming pool, is 6.4 m, depth (AD) at the shallow end is 80 cm and depth (BC) at the deepest end is 2.4 m, find its area of the cross-section.
The two parallel sides and the distance between them are in the ratio 3: 4: 2. If the area of the trapezium is 175 cm2, find its height.
Find the area of the trapezium ABCD in which AB || DC, AB = 18 cm, ∠B = ∠C = 90°, CD = 12 cm and AD = 10 cm.
Find the missing values.
| Height 'h' | Parallel side 'a` | Parallel side 'b` | Area |
| 19 m | 16 m | 323 sq.m |
