Answer:
Prince Henry initiated a program of exploration to find a route to the East Indies, by sailing around Africa.
Explanation:
Portuguese exploration along African coasts was fundamental for finding a route to the West Indies in the 15th century, after the Turks had cut the traditional route to Asia after their conquest of Constantinopole. In 1498, Vasco da Gama finally managed to circumnavigate Africa and arrived in India. The main goal of the Portuguese was to trade spices with India.
Earth's age is best estimated by:
Answer: Out of all the options presented above the one that represents the best way to estimate the Earth’s age is answer choice D) using radioactive isotope pairs to date the oldest rocks. This method is best known as radiometric dating.
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Is there a picture that is supposed to be attached?
Answer:
The perimeter of the triangle is 2+√2
Explanation:
Since one of the angles of the triangle is 90°, the triangle in question is a right angled triangle.
Since two angles of the triangle are also equal, then two of the its sides will be equal.
Let the opposite and the adjacent sides of the triangle be 1. To get the hypotenuse side, we will apply the Pythagoras theorem which States;
Hypotenuse² = Adjacent²+opposite²
Hyp² = 1²+1²
Hyp = √1²+1²
Hyp = √2
The third side of the triangle is √2.
The perimeter of the triangle will be the sum of all its sides i.e 1+1+√2
= 2+√2
The perimeter of the triangle will be 2+√2
Answer: 8
If EF is a line perpendicular to AB, then it forms four (90 degrees) angles intersecting AB. If AB is parallel to CD, and EF also intersects CD, then it form another four (90 degrees angles again. Total 90 degrees angles formed is 8.
