Radiant \ˈrād-ē-ənt\ adj.
marked by love, confidence, or joy
giving out reflecting rays of light
transmitted by radiation

which two sentences use definition 1 of the word radiant?
the strong radiant rays emitted from cell phones are harmful for kids.
her comforting words and radiant smile cheered the unhappy children.
the radiant gas emissions caused the people in the town to fall sick.
hannah was radiant as she accepted the award she received for her hard work.
tom's house uses radiant energy heating under the floorboards.