K । Technical department class 10
Group B14/(2+2+3X(242420-34)
4
If Rs 1600-$28 and £75- $86, how many pound (£) can be bought from Rs
103200?
यदि 61600-$283475-386 भए 7103200 ले कति पाउण्डीकन्न सकिन्छ।
b. The price of a machine decreases from Rs 60,000 and becomes Rs 7500 in
3 years then, find the rate of depreciation.
एउटा मेशिनको मूल्यवर्षमा 660,000बाट घटेर 17500कायमहुन्छ भनेटक्कमीशनको
मूल्यह्रासको दरपत्तालगाउनुहोस् ।
anoth of each side of an equilateral triangular base prisen is 12cm. If​

d. is the correct answer

step-by-step explanation:

answer: need picture of problem

step-by-step explanation:

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3