in the figure shown, which pair of angles must be complementary?
∠aoc and ∠dob
∠cod and ∠dob
∠cob and ∠aoc
∠aoc and ∠cod

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?