Question
A right-angled triangle has legs of lengths 9 cm and 12
cm. Find its hypotenuse, area and perimeter.Solution
Let legs = 9 cm, 12 cm; right angle between them. Hypotenuse = √(9² + 12²) = √(81 + 144) = √225 = 15 cm Area = ½ × base × height = ½ × 9 × 12 = 54 cm² Perimeter = 9 + 12 + 15 = 36 cm Answer: Hypotenuse = 15 cm; Area = 54 cm²; Perimeter = 36 cm.
AD is the median of triangle ABC. P is the centroid of triangle ABC. If AP = 14 cm, then what is the length of PD?
The ratio of the present ages of Ginni and Binni is 7:4 respectively. Ginni is ‘n’ years older than Binni. If after 2 years, the ratio of the ages o...
In what ratio coffee at 265 Rs/kg should be mixed with the coffee at 305 Rs/kg so that after mixture its rate become 280 Rs/kg if the quantity of 1st ty...
There are two buckets X and Y containing mixture of milk and water in which concentration of milk is (a-9)% and (a+15)%, respectively. They are mixed to...
58     69      56       ?      54       73
...You are provided with three sequences below. Determine the values of P, Q, and R, and then identify the relationship among them.<...
A trader mixes two types of rice varieties with a cost of Rs.68 and Rs.80. If he sells the mixture of Rs.88 at 25% profit, in what ratio he mixes two ty...
There are some Crows and Cows in a field. If the total number of heads in the field is 480 and the total number of legs is 1320, what is the number of ...
'A' spends 75% of his income, while 'K' spends 80% of his income. Both of them save ₹7,500 each. The income of 'S' is one-third...
One type of liquid contains 15% of benzene, the other contains 20% of benzene. A can is filled with 6 parts of the first liquid and 4 parts of the secon...
Relevant for Exams:
