Question

The moon is observed from two dimetically opposite point A and B frome the earth.The angle subtended at the moon by the two direction of observations is 1' 54"
Given-diameter of earth=1.27*10^7m calculate the distance moon from the earth

Answer 1

tan(57')=radius of earth/distance from moon. (57'=1°54'÷2)
putting values u get
distance=382942 km=3.82×10^8 m