Brazil is located on the equator at what positions of earth will be the sun be exactly overhead for Central America

The sun will be at:

Explanation:

The Tropics are regions that mark regions of the Earth's hemisphere where  the sun can be exactly overhead, additionally, they also identify tropical geographic regions. In ancient times, explorers once used these designations for travel. These change over time relative to the earth's rotational axis and orbit of the sun.

These regions are indicative of the northernmost and southernmost regions at which the sun can shine directly overhead at noon; they are described relative to the position of the Equator at 0° latitude. Both are due to a shift in the earth's axial tilt by approximately 23.4°, which places the sun directly above these regions.

Tropic of Capricorn (23.5°27´ S or southern latitude)

Tropic of Cancer (23.5°27´ N or northern latitude):